core: Implement commands for operating on a single input line

This changes the commands delete_beginning_of_line, delete_end_of_line,
delete_line, move_beginning_of_line and move_end_of_line to operate on
the current line instead of the whole input. The commands
delete_beginning_of_input, delete_end_of_input, delete_input,
move_beginning_of_input and move_end_of_input are added with the
previous implementations that the line commands had.

Additionally, the commands move_previous_line and move_next_line are
added which moves the cursor to the previous/next line and keeps the
horizontal position in the line.

The meta-r key is changed from delete_line to delete_input to keep the
behavior, and because you probably want to delete the whole input more
often than the line. The meta-R key is added for delete_line.

The home, end, ctrl-u and ctrl-k keys are kept to the same commands,
which means that they change behaviour. This is because having them
operate on the line is consistent with other applications (vim, zsh),
and I also think it's more practical.

These new bindings are added:

    shift-home:  /input move_beginning_of_input
    shift-end:   /input move_end_of_input
    shift-up:    /input move_previous_line
    shift-down:  /input move_next_line
    meta-R:      /input delete_line
    meta-ctrl-u: /input delete_beginning_of_input
    meta-ctrl-k: /input delete_end_of_input

Relates to #1498

1 files changed, 8 insertions, 1 deletions

diff --git a/src/gui/curses/gui-curses-key.c b/src/gui/curses/gui-curses-key.c
index 4fb0f6fc3..cf0c9c57f 100644
--- a/src/gui/curses/gui-curses-key.c
+++ b/src/gui/curses/gui-curses-key.c
@@ -95,14 +95,19 @@ gui_key_default_bindings (int context, int create_option)
         BIND("meta-x",            "/buffer zoom");
         BIND("meta-d",            "/input delete_next_word");
         BIND("ctrl-k",            "/input delete_end_of_line");
-        BIND("meta-r",            "/input delete_line");
+        BIND("meta-ctrl-k",       "/input delete_end_of_input");
+        BIND("meta-r",            "/input delete_input");
+        BIND("meta-R",            "/input delete_line");
         BIND("ctrl-t",            "/input transpose_chars");
         BIND("ctrl-u",            "/input delete_beginning_of_line");
+        BIND("meta-ctrl-u",       "/input delete_beginning_of_input");
         BIND("ctrl-y",            "/input clipboard_paste");
         BIND("home",              "/input move_beginning_of_line");
         BIND("ctrl-a",            "/input move_beginning_of_line");
+        BIND("shift-home",        "/input move_beginning_of_input");
         BIND("end",               "/input move_end_of_line");
         BIND("ctrl-e",            "/input move_end_of_line");
+        BIND("shift-end",         "/input move_end_of_input");
         BIND("left",              "/input move_previous_char");
         BIND("ctrl-b",            "/input move_previous_char");
         BIND("right",             "/input move_next_char");
@@ -115,6 +120,8 @@ gui_key_default_bindings (int context, int create_option)
         BIND("down",              "/input history_next");
         BIND("ctrl-up",           "/input history_global_previous");
         BIND("ctrl-down",         "/input history_global_next");
+        BIND("shift-up",          "/input move_previous_line");
+        BIND("shift-down",        "/input move_next_line");
         BIND("meta-a",            "/buffer jump smart");
         BIND("meta-j,meta-f",     "/buffer -");
         BIND("meta-j,meta-l",     "/buffer +");